matrix whose cell arrays are vectors

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Mehdi 2017-3-31

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https://ww2.mathworks.cn/matlabcentral/answers/332925-matrix-whose-cell-arrays-are-vectors

回答： the cyclist 2017-3-31

采纳的回答： the cyclist

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Hi,

I am trying to form a 5x20 matrix whose arrays are themselves 3x1 matrix (x(i), y(i), z(i)) in each row:

x = zeros(1, 20);
y = -47.5 : 5: -32.5;
z = (22.5 :-5: 12.5)';

z is a 5x1 matrix which is the same in each column.

How do I do that?

Thank you!

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Jan 2017-3-31

Wow, this is a complicated question. The terms "matrix", "cell", "array" and "vector" are wildly mixed.

The problem might get clear, if you use the standard Matlab names: Only cell arrays are "cells". "Matrices" are 2D "arrays". "Vectors" are [1 x N] or [N x 1] arrays (and matrices).

Currently I do not get, what you are looking for.

Tushar Agarwal 2017-3-31

Hello - If you could clearly tell what your issue is? It was a little difficult to understnad what you seek to find

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Answer 1

the cyclist 2017-3-31

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I am going to try to take my best guess at what you mean. At the very least, you will see one way to structure this.

% Your example contents
x = zeros(1, 20);
y = -47.5 : 5: -32.5;
z = (22.5 :-5: 12.5)';
% Define the highest-level cell array
M = cell(5,20);
% Define that the first cell of M contains a 1x3 cell array
M{1,1} = cell(1,3);
% Fill each of the three cells with its contents
M{1,1}{1} = x;
M{1,1}{2} = y;
M{1,1}{3} = z;